>>> and michigan's governor signs the state's controversial new right-to-work law, but not before labor activists protest throughout the capital. captioning funded by cbs >>> >>> this is the "cbs morning news" for wednesday, december 12, 2012. >>> good morning, everybody. i'm terrell brown. good to be with you. >>> oregon officials have tentatively identify the gunman who opened fire at a business shopping mall. christmas music was playing as the lone gunman fired shots yesterday afternoon near the food court at one of portland's largest shopping malls. the gunman killed two people and seriously wounded another before taking his own life. one witness heard him say, "i am the shooter," as he fired dozens of rounds into the machlt bigad shaban is live. good morning to you. >> reporter: terrell, good morning to you. it's an eerie and quiet scene here. it's a much different scene than yesterday when that masked gunman began firing inside one of the busiest malls in the portland area. cell phone video shows police escorting shoppers to safety, and the first moments after a masked gunman open